The pea is most commonly the small spherical seed or the seed-pod of the pod fruit Pisum sativum. Each pod contains several peas, which can be green or yellow. Botanically, pea pods are fruit, since they contain seeds and develop from the ovary of a (pea) flower. The name is also used to describe other edible seeds from the Fabaceae such as the pigeon pea (Cajanus cajan), the cowpea (Vigna unguiculata), and the seeds from several species of Lathyrus.
A pea is a most commonly green, occasionally golden yellow, or infrequently purple pod-shaped vegetable, widely grown as a cool-season vegetable crop.
Few things say "spring" like that first taste of peas, picked fresh from your garden. Native to southern Europe, peas are easy to grow in any size garden or in containers. The only real trick to growing peas is planting them in early spring before the heat of summer hits and providing them with plenty of water.
Proper watering is one of the most important factors of a successful pea crop. Your pea plant should be watered deeply and regularly, especially as it's first getting established in your garden